org.mortbay.jetty.servlet
Class ServletHolder

java.lang.Object
  org.mortbay.component.AbstractLifeCycle
      org.mortbay.jetty.servlet.Holder
          org.mortbay.jetty.servlet.ServletHolder

All Implemented Interfaces:

Serializable, Comparable, LifeCycle

public class ServletHolder
extends Holder
implements Comparable

Servlet Instance and Context Holder. Holds the name, params and some state of a javax.servlet.Servlet instance. It implements the ServletConfig interface. This class will organise the loading of the servlet when needed or requested.

Author:

Greg Wilkins

See Also:

Serialized Form

Field Summary

Fields inherited from class org.mortbay.jetty.servlet.Holder

_class, _className, _displayName, _extInstance, _initParams, _name, _servletHandler

Constructor Summary

ServletHolder()
Constructor .

ServletHolder(Class servlet)
Constructor for existing servlet.

ServletHolder(Servlet servlet)
Constructor for existing servlet.

Method Summary

void	checkServletType() Check to ensure class of servlet is acceptable.
int	compareTo(Object o) Comparitor by init order.
void	destroyInstance(Object o)
void	doStart()
void	doStop()
boolean	equals(Object o)
String	getForcedPath()
int	getInitOrder()
Map	getRoleMap()
String	getRunAs()
Servlet	getServlet() Get the servlet.
String	getUserRoleLink(String name) get a user role link.
void	handle(ServletRequest request, ServletResponse response) Service a request with this servlet.
int	hashCode()
boolean	isAvailable()
void	setForcedPath(String forcedPath)
void	setInitOrder(int order) Set the initialize order.
void	setRunAs(String role)
void	setServlet(Servlet servlet)
void	setUserRoleLink(String name, String link) Link a user role.

Methods inherited from class org.mortbay.jetty.servlet.Holder

getClassName, getDisplayName, getHeldClass, getInitParameter, getInitParameterNames, getInitParameters, getName, getServletHandler, newInstance, setClassName, setDisplayName, setHeldClass, setInitParameter, setInitParameters, setName, setServletHandler, toString

Methods inherited from class org.mortbay.component.AbstractLifeCycle

isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, start, stop

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ServletHolder

public ServletHolder()

Constructor .

ServletHolder

public ServletHolder(Servlet servlet)

Constructor for existing servlet.

ServletHolder

public ServletHolder(Class servlet)

Constructor for existing servlet.

Method Detail

setServlet

public void setServlet(Servlet servlet)

getInitOrder

public int getInitOrder()

setInitOrder

public void setInitOrder(int order)

Set the initialize order. Holders with order<0, are initialized on use. Those with order>=0 are initialized in increasing order when the handler is started.

compareTo

public int compareTo(Object o)

Comparitor by init order.

Specified by:

compareTo in interface Comparable

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

setUserRoleLink

public void setUserRoleLink(String name,
                            String link)

Link a user role. Translate the role name used by a servlet, to the link name used by the container.

Parameters:

name - The role name as used by the servlet

link - The role name as used by the container.

getUserRoleLink

public String getUserRoleLink(String name)

get a user role link.

Parameters:

name - The name of the role

Returns:

The name as translated by the link. If no link exists, the name is returned.

getRoleMap

public Map getRoleMap()

setRunAs

public void setRunAs(String role)

Parameters:

role - Role name that is added to UserPrincipal when this servlet is called.

getRunAs

public String getRunAs()

getForcedPath

public String getForcedPath()

Returns:

Returns the forcedPath.

setForcedPath

public void setForcedPath(String forcedPath)

Parameters:

forcedPath - The forcedPath to set.

doStart

public void doStart()
             throws Exception

Overrides:

doStart in class Holder

Throws:

Exception

doStop

public void doStop()

Overrides:

doStop in class Holder

destroyInstance

public void destroyInstance(Object o)
                     throws Exception

Overrides:

destroyInstance in class Holder

Throws:

Exception

getServlet

public Servlet getServlet()
                   throws ServletException

Get the servlet.

Returns:

The servlet

Throws:

ServletException

checkServletType

public void checkServletType()
                      throws UnavailableException

Check to ensure class of servlet is acceptable.

Throws:

UnavailableException

isAvailable

public boolean isAvailable()

Returns:

true if the holder is started and is not unavailable

handle

public void handle(ServletRequest request,
                   ServletResponse response)
            throws ServletException,
                   UnavailableException,
                   IOException

Service a request with this servlet.

Throws:

ServletException

UnavailableException

IOException